Author: Di Calafiori, D.R.S.
Paper Title Page
MOPGF016 Improving the Compact Muon Solenoid Electromagnetic Calorimeter Control and Safety Systems for the Large Hadron Collider Run 2 117
 
  • D.R.S. Di Calafiori, G. Dissertori, L. Djambazov, O. Holme, W. Lustermann
    ETH, Zurich, Switzerland
  • P. Adzic, P. Cirkovic, D. Jovanovic
    VINCA, Belgrade, Serbia
  • S. Zelepoukine
    UW-Madison/PD, Madison, Wisconsin, USA
 
  Funding: Swiss National Science Foundation (SNSF); Ministry of Education, Science and Technological Development of Serbia
The first long shutdown of the Large Hadron Collider (LS1, 2013-2015) provided an opportunity for significant upgrades of the detector control and safety systems of the CMS Electromagnetic Calorimeter. A thorough evaluation was undertaken, building upon experience acquired during several years of detector operations. Substantial improvements were made to the monitoring systems in order to extend readout ranges and provide improved monitoring precision and data reliability. Additional remotely controlled hardware devices and automatic software routines were implemented to optimize the detector recovery time in the case of failures. The safety system was prepared in order to guarantee full support for both commercial off-the-shelf and custom hardware components throughout the next accelerator running period. The software applications were modified to operate on redundant host servers, to fulfil new requirements of the experiment. User interface extensions were also added to provide a more complete overview of the control system. This paper summarises the motivation, implementation and validation of the major improvements made to the hardware and software components during the LS1 and the early data-taking period of LHC Run 2.
 
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